Chain saw tooth setting device



Oct. 2, 1945.

E. E. LAMBERT CHAIN SAW TOOTH SETTING DEVICE Filed June 15, 1944'INVENTOR ENOCH E LAMBERT ATTORNEY bar. or it may be used ensuring theopposite side of -liottheehainl. Thefloel Patented Oct. 2,1945

Enoch E. Lambert,

hall'to Charles A.

tis 0reg., alsignor of one- Bits, Otis, Oreg.

Application June 1:, m4, Serial No. 540,052

1 Claim.

This invention relates to saw vices and is particularly adapted forsetting teeth on chain saws.

The primary object of the invention is to provide a portable tool forsetting the teeth on chain saws that can be applied to the teeth of thesaw without removing the saw chain from the saw on the chain while beingsupported on a tiling rack.

A further object oi the invention is to provide interchangeable dieswithin the device for governing the amount of set given to the tooth.

A further object of my invention is the provision of a portable sawsetting device that will securely grip the chain saw holding it securelyto the saw bar while the set is being made.

These and other incidental objects will be apparent in the drawing,specification and claim.

Referring to the drawing:

Figure 1 is a fragmentary side view of my new and improved tooth settingdevicebeing applied I to chain saw, parts broken away for convenience ofillustration.

Figure 2 is a fragmentary sectional view, taken on line 2-2 01' Figure1, looking in the direction indicated.

Figure 3 is a fragmentary sectional view, taken on line 3-! of Figure 1,illustrating the relative position of the setting device to that of thechain saw and saw bar.

the chain 0. Both the faces I away at lior straddling the'Ihasashoulderll tooth setting deset given to the tooth. When the jaw l5and the goose neck I are tightened against the saw bar I and the chain 8they are guided into position by the shoulder ii. The plunger punch IIis then struck on the end It by any suitable hammer, which will forceits end against the tooth it, forcing the tooth against the anvil I4,shaping the same to correspond to the anvil and the end of the plungerpunch. The plunger punch it returns to the retracted position asillustrated in Figure 2 by suitable spring 2i bearing against thretaining key 2! at its one end and against the end of the slot 23 atits opposite end.

In the operation of my new and improved chain saw setting device the jawii and the goose neck 1 are opened and the device is placed over thechain, the shoulder ll oi the goose neck first contacting the uppersurface i2 0! the plain tooth opposite the tooth to be set, guidingthe'set to its-proper location. The handles 24 are then brought togetherby the operator clamping the saw bar I and the chain I securely betweenthe jaw ii and the goose neck I holding the whole assembly rigidly whilethe plunger punch I8 is struck with the hammer shaping the tooth.

This device is portable, economical to manufactureand simple ofoperation, at the same time providing a precision tooth setting tool.

I do not wish to be limited to the exact mechanical construction asillustrated, as other forms of mechanical embodiment may be employedstill coming within the scope oi my claim.

What is claimed as new is:

A saw tooth setting assembly for chain saws, including a bar torm'ed'atone end with a slot for movably'"'guiding the saw in combination with atooth-setting tool comprising pivotally connected members iormed at oneend to provide jaws having relatively ilat faces to engage the outersurfaces of the walls of the slot in the bar to bind the saw in fixedrelation to the bar. means ononeiawtocngageasawinthebarslotto determinethe vertical position of the Jaws relative to the bar and included saw,an anvil car-' rled by onejaw immediately above but wholly free of theflat lace, and a spring-pressed plunger mounted in the other law formanual operation toward and for relative c p atimwiththe anvil forsettingthesawtootlnthe length oithe'slotinthebarprovldingupperendsm'iacesonwhichthesawisgiddediorsuceessivetoothsetting operations oithetool.

mam.

